If, the whole world withers.
What if, everyone is gone and remains in the past.
If such a warm and clean smile could only bloom in memories——
"——I also want to fight with everyone."
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To put it simply, this is a story about a Loli growing up and falling in love with Shota.
Nanzhu is the unpopular Feng Taijun, I have always liked him~
The future plot contains some spoilers from another fan article "Tutor Stellar Trajectory" (18BG)~